ADS1602
Convertidor analógico a digital de 16 bits, 2,5 MSPS
ADS1602
- High Speed:
- Data Rate: 2.5MSPS
- Bandwidth: 1.23MHz
- Outstanding Performance:
- SNR: 91dB at fIN = 100kHz, –1dBFS
- THD: –101dB at fIN = 100kHz, –6dBFS
- SFDR: 103dB at fIN = 100kHz, –6dBFS
- Ease-of-Use:
- High-Speed 3-Wire Serial Interface
- Directly Connects to TMS320 DSPs
- On-Chip Digital Filter Simplifies Antialias Requirements
- Simple Pin-Driven Control—No On-Chip Registers to Program
- Selectable On-Chip Voltage Reference
- Simultaneous Sampling with Multiple ADS1602s
- Low Power:
- 530mW at 2.5MSPS
- Power-Down Mode
The ADS1602 is a high-speed, high-precision, delta-sigma (ΔΣ) analog-to-digital converter (ADC) manufactured on an advanced CMOS process. The ADS1602 oversampling topology reduces clock jitter sensitivity during the sampling of high-frequency, large amplitude signals by a factor of four over that achieved by Nyquist-rate ADCs. Consequently, signal-to-noise ratio (SNR) is particularly improved. Total harmonic distortion (THD) is –101dB, and the spurious-free dynamic range (SFDR) is 103dB.
Optimized for power and performance, the ADS1602 dissipates only 530mW while providing a full-scale differential input range of ±3V. Having such a wide input range makes out-of-range signals unlikely. The OTR pin indicates if an analog input out-of-range condition does occur. The differential input signal is measured against the differential reference, which can be generated internally or supplied externally on the ADS1602.
The ADS1602 uses an inherently stable advanced modulator with an on-chip decimation filter. The filter stop band extends to 38.6MHz, which greatly simplifies the antialiasing circuitry. The modulator samples the input signal up to 40MSPS, depending on fCLK, while the 16x decimation filter uses a series of four half-band FIR filter stages to provide 75dB of stop band attenuation and 0.001dB of passband ripple.
Output data is provided over a simple 3-wire serial interface at rates up to 2.5MSPS, with a –3dB bandwidth of 1.23MHz. The output data or its complementary format directly connects to DSPs such as TI’s TMS320 family, FPGAs, or ASICs. A dedicated synchronization pin enables simultaneous sampling with multiple ADS1602s in multi-channel systems. Power dissipation is set by an external resistor that allows a reduction in dissipation when operating at slower speeds. All of the ADS1602 features are controlled by dedicated I/O pins, which simplify operation by eliminating the need for on-chip registers.
The high performing, easy-to-use ADS1602 is especially suitable for demanding measurement applications in sonar, vibration analysis, and data acquisition. The ADS1602 is offered in a small, 7mm × 7mm TQFP-48 package and is specified from –40°C to +85°C.
Documentación técnica
Tipo | Título | Fecha | ||
---|---|---|---|---|
* | Data sheet | 16-Bit, 2.5MSPS Analog-to-Digital Converter datasheet (Rev. E) | 20 oct 2011 | |
Application note | Digital Filter Types in Delta-Sigma ADCs (Rev. A) | PDF | HTML | 29 mar 2023 | |
Application note | ADS16xx Reference Options (Rev. A) | PDF | HTML | 09 mar 2022 | |
E-book | Fundamentals of Precision ADC Noise Analysis | 19 jun 2020 | ||
White paper | Voltage-reference impact on total harmonic distortion | 01 ago 2016 | ||
E-book | Best of Baker's Best: Precision Data Converters -- Delta-Sigma ADCs | 19 mar 2015 |
Diseño y desarrollo
Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.
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Productos y hardware compatibles
Productos
Amplificadores operacionales de precisión (Vox < 1 mV)
Amplificadores de propósito general
Amplificadores operacionales para audio
Amplificadores de transimpedancia
Amplificadores operacionales de alta velocidad (GBW ≥ 50 MHz)
Amplificadores operacionales de potencia
Amplificadores de video
Drivers de línea
Amplificadores de transconductancia y drivers láser
Amplificadores totalmente diferenciales
ADC de precisión
AFE para biosensores
ADC de alta velocidad (≥ 10 MSPS)
Receptores
Controladores de pantalla táctil
Amplificadores diferenciales
Amplificadores de instrumentación
Receptores de línea de audio
Amplificadores analógicos de detección de corriente
Monitores de potencia digitales
Amplificadores analógicos de detección de corriente con resistencia de derivación integrada
Monitores de potencia digitales con resistencia de derivación integrada
Servicios de troqueles y obleas
PSPICE-FOR-TI — PSpice® para herramienta de diseño y simulación de TI
TINA-TI — Programa de simulación analógica basado en SPICE
Encapsulado | Pines | Símbolos CAD, huellas y modelos 3D |
---|---|---|
TQFP (PFB) | 48 | Ultra Librarian |
Pedidos y calidad
- RoHS
- REACH
- Marcado del dispositivo
- Acabado de plomo/material de la bola
- Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
- Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
- Contenido del material
- Resumen de calificaciones
- Monitoreo continuo de confiabilidad
- Lugar de fabricación
- Lugar de ensamblaje
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Soporte y capacitación
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